ios - NSMutableArray addsubview UIImageView when is in Event

Question

当我在事件中时，我的图像没有出现在我的 UIImageView 中，在我的 viewDidLoad 中没有问题。

• (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event

{

if ( event.subtype == UIEventSubtypeMotionShake )
{
    int i;
    int r;

    for ( i = 1 ; i <= 5 ; )
    {
        r =  (arc4random()%NbrCells) + 1;

        if (GridCell[r].hidden == NO)
        {
            // View position.

            CGFloat OriginX = GridCell[r].frame.origin.x;
            CGFloat OriginY = GridCell[r].frame.origin.y;
            CGFloat Height = GridCell[r].frame.size.height;
            CGFloat Whidth = GridCell[r].frame.size.width;

            [GridCell[r] removeFromSuperview];

            GridCell[r] = nil;

            GridCell[r] = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"background.png"]];

            GridCell[r].frame = CGRectMake(OriginX, OriginY, Whidth, Height);
            GridCell[r].hidden = NO;

            [self.MyImage1 addSubview:GridCell[r]];

            // [MyArray[r] addObject:[NSNumber numberWithInt:NO]];

            i++;

            sleep(1);
        }
    }

    NSLog(@"Event stop, number delete = %d", i - 1);

}

if ( [super respondsToSelector:@selector(motionEnded:withEvent:)] )
    [super motionEnded:motion withEvent:event];

返回; }

非常感谢。

艾伦10977。